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Q1. | A waveguide section in a microwave circuit acts as |

A. | LP filter [Wrong Answer] |

B. | Bandpass filter [Wrong Answer] |

C. | HP filter [Correct Answer] |

D. | Band stop filter [Wrong Answer] |

View Answer
Explanation:-
Answer : CDiscuss it below :!! OOPS Login [Click here] is required to post your answer/resultHelp other students, write article, leave your comments |

**Also Read Similar Questions Below :**

⇒ Consider the following statements about Java variables

- Java variable must start with a letter or underscore or dollor sign.
- Java variable can not start with a digit.
- After the first character the variable can have any combination of letters or numbers.
- Capitalization of letters must be consistent.

All

1, 2 and 3 only

2, 3, 4 only

1, 2 and 4 only

⇒ If an amplifier with gain of - 1000 and feedback factor β = - 0.1 had a gain change of 20% due to temperature, the change in gain of the feedback amplifier would be

0.1

0.05

0.002

0.0001

⇒ In C the keywords are also called

special words

reserved words

class words

character words

⇒ CC circuit is suitable for impedance matching.

TRUE

FALSE

⇒ If B

_{max}is the maximum flux density, eddy current loss is proportional to

B

_{max}

B

^{1.6}

_{max}

B

^{2}

_{max}

B

^{3}

_{max}

⇒ What is an advantage of an electronic voltmeter over a non-electronic voltmeter?

Low power consumption

Low input impedance

The ability to measure wide ranges of voltages and resistance

Large portability

⇒ AECF1

_{16}+ 15ACD

_{16}= __________ .

C47BB

_{16}

C47BE

_{16}

A234F

_{16}

A1111

_{16}

⇒ Calculate the wave number in waveguide having dimensions 4 x 2 cm at 3 GHz

6.28

62.8

8

0

⇒ For radiating ultraviolet rays, LEDs use

zinc sulphide

gallium arsenide

gallium phosphide

none of the above

⇒ BCD equivalent of - 8

_{10}is

110

10110

11000

1000

⇒ A noiseless 3 kHz channel can't transmit binary bit at the rate

12000 bps

1000 bps

6000 bps

3000 bps

⇒ A telephone user while talking to a person via a satellite has to wait for reply for about __________ millisecond.

100

270

470

540

⇒ The scale of dynamometer wattmeter is non linear.

TRUE

FALSE

⇒ In saturation region JFET acts like a

bipolar device

short circuit

switch

resistance

⇒ How many flag are there in 8085 microprocessor?

4

5

6

8

⇒ Two resistance R

_{1}and R

_{2}are connected in series R

_{1}= 528 ± 5 Ω and R

_{2}= 325 ± 3Ω. The total resistance will be

853 ± 2 Ω

853 ± 5 Ω

853 ± 3 Ω

853 ± 8 Ω

⇒ In a simple on-off controller with differential gap, the magnitude of differential gap determines

the level of accuracy

the life of controller

both (a) and (b)

neither (a) nor (b)

⇒ Which of the following power amplifiers has highest efficiency?

Class A

Class AB

Class B

Class C

⇒ Inverse Fourier transform of '1' is

U(

*t*)

δ(

*t*)

0'

infinite

⇒ A source of angular frequency 1 rad sec has a source impedance consisting of 1 Ω resistance in series with 1 H inductance. The load that will obtained the maximum power transfer is

1 Ω resistance

1 Ω resistance in parallel with 1 H inductance

1 Ω resistance in series with 1 F capacitor

1 Ω resistance in parallel with 1 F capacitor

⇒ The polar plot of P (

*j*ω) = 45° as ω varies from -∞ to ∞ is

a straight line parallel to

*x*-axis

a straight line parallel to

*y*-axis

a line passing through origin and inclined at 45°

a line in first quadrant passing through origin and inclined at 45° to positive

*x*-axis

⇒ The main feature of a parametric amplifier is

low noise

very high gain

broad bandwidth

both (b) and (c)

⇒ The Boolean expression Y = (A + B + AB) C then

*Y*will be equal to

AC

BC

C

none

⇒

`ALU 1C 74181`

can accept two words each having2 bits

4 bits

8 bits

16 bits

⇒ Which one of the following statement is correct?

Both Laplace's (L) and Poisson's (P) equation are non linear

L is non linear but P is linear

L is linear but P is non linear

L, P both is linear

⇒ As temperature increases, the temperature coefficient of a metal

decreases

increases

remains unchanged

any of the above

⇒ A land line telemetry system is suitable for distance upto

about 1 km only

about 10 km only

about 100 km only

any of the above

⇒ The law J = σE, where J is current density, σ is electrical conductivity and E is field strength is

Ohm's law

Gauss law

Ampere's law

Biot-Savart law

⇒ If the conductivity of pure germanium is 1.54 siemens/metre, its resistivity in ohm-metre will be nearly

65

6.5

0.65

0.065

⇒ A loudspeaker transformer has a turns ratio of 20 : 1. The speaker impedance is 20Ω. Primary impedance of transformer is

10 K

8 K

20 K

0.5 K